Dyno 2: AEM Cold-Air intake system
Pros
As with all AEM intakes, this is a handsomely designed system with exceptional fit and finish. All of the bends are perfectly shaped and there is very little tweaking necessary for perfect fitment. Another plus is that all AEM intakes are developed and resonance-tuned on the dyno for maximum power. The benefit of this was evidenced by the power gains: 3.9 hp and 2.3 lb-ft of torque.
Cons
There is obviously room for more power, although those 18-inch wheels were probably at least partly to blame. Also, as with most CAI systems, you run the risk of sucking in water from the air filter since it sits low behind the bumper cover. It's probably a good idea to invest in AEM's bypass valve to give yourself a bit of insurance against rain and deep puddles.
Notes
Newer vehicles keep coming out with more emissions-related junk, and the tC is no different. There is a carbon trap built into the stock intake box that is essential for emissions purposes. While the system we tested did not employ this carbon trap (it's still being refined for CARB exemption), we've been assured by the time you read this, the system will have the trap and CARB exemption in place on production systems.
Tools
8- and 10mm socket, extension, ratchet, pliers, standard and Phillips screwdrivers
Parts
Filter, intake pipes, hoses, hose clamps, instructions and decals
Installation time
60 minutes
Temperature
Air temp @ 71.6 degrees Fahrenheit
Temperature difference from previous run: + 1.3 degrees Fahrenheit
2000 to 3500 HP range: 0 to 5
3500 to 5500 HP range: 1 to 5
5500 to redline HP range: 3 to 5
2000 to 3500 TQ range: -1 to 6
3500 to 5500 TQ range: 2 to 7
5500 to redline TQ range: 3 to 4
Peak HP: 144.3
Peak TQ: 153.1
By Richard Fong
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